1 files changed, 204 insertions, 1 deletions

diff --git a/sound/soc/mediatek/common/mtk-soundcard-driver.c b/sound/soc/mediatek/common/mtk-soundcard-driver.c
index a58e1e3674de..3bbf42c42805 100644
--- a/sound/soc/mediatek/common/mtk-soundcard-driver.c
+++ b/sound/soc/mediatek/common/mtk-soundcard-driver.c
@@ -10,6 +10,8 @@
 #include <linux/of.h>
 #include <sound/soc.h>
 
+#include "mtk-dsp-sof-common.h"
+#include "mtk-soc-card.h"
 #include "mtk-soundcard-driver.h"
 
 static int set_card_codec_info(struct snd_soc_card *card,
@@ -22,7 +24,11 @@ static int set_card_codec_info(struct snd_soc_card *card,
 
 	codec_node = of_get_child_by_name(sub_node, "codec");
 	if (!codec_node) {
-		dev_dbg(dev, "%s no specified codec\n", dai_link->name);
+		dev_dbg(dev, "%s no specified codec: setting dummy.\n", dai_link->name);
+
+		dai_link->codecs = &snd_soc_dummy_dlc;
+		dai_link->num_codecs = 1;
+		dai_link->dynamic = 1;
 		return 0;
 	}
 
@@ -132,3 +138,200 @@ void clean_card_reference(struct snd_soc_card *card)
 		snd_soc_of_put_dai_link_codecs(dai_link);
 }
 EXPORT_SYMBOL_GPL(clean_card_reference);
+
+int mtk_soundcard_startup(struct snd_pcm_substream *substream,
+			  enum mtk_pcm_constraint_type ctype)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_soc_card_data *soc_card = snd_soc_card_get_drvdata(rtd->card);
+	const struct mtk_pcm_constraints_data *mpc = &soc_card->card_data->pcm_constraints[ctype];
+	int ret;
+
+	if (unlikely(!mpc))
+		return -EINVAL;
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_RATE,
+					 mpc->rates);
+	if (ret < 0) {
+		dev_err(rtd->dev, "hw_constraint_list rate failed\n");
+		return ret;
+	}
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_CHANNELS,
+					 mpc->channels);
+	if (ret < 0) {
+		dev_err(rtd->dev, "hw_constraint_list channel failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_soundcard_startup);
+
+static int mtk_soundcard_playback_startup(struct snd_pcm_substream *substream)
+{
+	return mtk_soundcard_startup(substream, MTK_CONSTRAINT_PLAYBACK);
+}
+
+const struct snd_soc_ops mtk_soundcard_common_playback_ops = {
+	.startup = mtk_soundcard_playback_startup,
+};
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_playback_ops);
+
+static int mtk_soundcard_capture_startup(struct snd_pcm_substream *substream)
+{
+	return mtk_soundcard_startup(substream, MTK_CONSTRAINT_CAPTURE);
+}
+
+const struct snd_soc_ops mtk_soundcard_common_capture_ops = {
+	.startup = mtk_soundcard_capture_startup,
+};
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_capture_ops);
+
+int mtk_soundcard_common_probe(struct platform_device *pdev)
+{
+	struct device_node *platform_node, *adsp_node;
+	const struct mtk_soundcard_pdata *pdata;
+	struct mtk_soc_card_data *soc_card_data;
+	struct snd_soc_dai_link *orig_dai_link, *dai_link;
+	struct snd_soc_jack *jacks;
+	struct snd_soc_card *card;
+	int i, orig_num_links, ret;
+	bool needs_legacy_probe;
+
+	pdata = device_get_match_data(&pdev->dev);
+	if (!pdata)
+		return -EINVAL;
+
+	card = pdata->card_data->card;
+	card->dev = &pdev->dev;
+	orig_dai_link = card->dai_link;
+	orig_num_links = card->num_links;
+
+	ret = snd_soc_of_parse_card_name(card, "model");
+	if (ret)
+		return ret;
+
+	if (!card->name) {
+		if (!pdata->card_name)
+			return -EINVAL;
+
+		card->name = pdata->card_name;
+	}
+
+	needs_legacy_probe = !of_property_read_bool(pdev->dev.of_node, "audio-routing");
+	if (needs_legacy_probe) {
+		/*
+		 * If we have no .soc_probe() callback there's no way of using
+		 * any legacy probe mechanism, as that cannot not be generic.
+		 */
+		if (!pdata->soc_probe)
+			return -EINVAL;
+
+		dev_info_once(&pdev->dev, "audio-routing not found: using legacy probe\n");
+	} else {
+		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+		if (ret)
+			return ret;
+	}
+
+	soc_card_data = devm_kzalloc(&pdev->dev, sizeof(*soc_card_data), GFP_KERNEL);
+	if (!soc_card_data)
+		return -ENOMEM;
+
+	soc_card_data->card_data = pdata->card_data;
+
+	jacks = devm_kcalloc(card->dev, soc_card_data->card_data->num_jacks,
+			     sizeof(*jacks), GFP_KERNEL);
+	if (!jacks)
+		return -ENOMEM;
+
+	soc_card_data->card_data->jacks = jacks;
+
+	platform_node = of_parse_phandle(pdev->dev.of_node, "mediatek,platform", 0);
+	if (!platform_node)
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "Property mediatek,platform missing or invalid\n");
+
+	/* Check if this SoC has an Audio DSP */
+	if (pdata->sof_priv)
+		adsp_node = of_parse_phandle(pdev->dev.of_node, "mediatek,adsp", 0);
+	else
+		adsp_node = NULL;
+
+	if (adsp_node) {
+		if (of_property_read_bool(pdev->dev.of_node, "mediatek,dai-link")) {
+			ret = mtk_sof_dailink_parse_of(card, pdev->dev.of_node,
+						       "mediatek,dai-link",
+						       card->dai_link, card->num_links);
+			if (ret) {
+				of_node_put(adsp_node);
+				of_node_put(platform_node);
+				return dev_err_probe(&pdev->dev, ret,
+						     "Cannot parse mediatek,dai-link\n");
+			}
+		}
+
+		soc_card_data->sof_priv = pdata->sof_priv;
+		card->probe = mtk_sof_card_probe;
+		card->late_probe = mtk_sof_card_late_probe;
+		if (!card->topology_shortname_created) {
+			snprintf(card->topology_shortname, 32, "sof-%s", card->name);
+			card->topology_shortname_created = true;
+		}
+		card->name = card->topology_shortname;
+	}
+
+	/*
+	 * Regardless of whether the ADSP is wanted and/or present in a machine
+	 * specific device tree or not and regardless of whether any AFE_SOF
+	 * link is present, we have to make sure that the platforms->of_node
+	 * is not NULL, and set to either ADSP (adsp_node) or AFE (platform_node).
+	 */
+	for_each_card_prelinks(card, i, dai_link) {
+		if (adsp_node && !strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF")))
+			dai_link->platforms->of_node = adsp_node;
+		else if (!dai_link->platforms->name && !dai_link->platforms->of_node)
+			dai_link->platforms->of_node = platform_node;
+	}
+
+	if (!needs_legacy_probe) {
+		ret = parse_dai_link_info(card);
+		if (ret)
+			goto err_restore_dais;
+	} else {
+		if (adsp_node)
+			of_node_put(adsp_node);
+		of_node_put(platform_node);
+	}
+
+	if (pdata->soc_probe) {
+		ret = pdata->soc_probe(soc_card_data, needs_legacy_probe);
+		if (ret) {
+			if (!needs_legacy_probe)
+				clean_card_reference(card);
+			goto err_restore_dais;
+		}
+	}
+	snd_soc_card_set_drvdata(card, soc_card_data);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	if (!needs_legacy_probe)
+		clean_card_reference(card);
+
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "Cannot register card\n");
+		goto err_restore_dais;
+	}
+
+	return 0;
+
+err_restore_dais:
+	card->dai_link = orig_dai_link;
+	card->num_links = orig_num_links;
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_probe);